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NATIVE PLANTS OF THE ISLAND OF RHODE ISLAND.* 
IV. 
CARYOPHYLLACEHL 
Saponaria officinalis, Common Soapwort. 
LINACEvE. 
Linum usitatissimum, Common Flax (Portsmouth). 
LEGUMINOSHE. 
Medicago sativa, Lucerne (Coaster’s Harbor Island). 
Cassia Cham^ecrista, Partridge Pea (Quaker Hill). 
ROSACEyE. 
Spiraea salicifolia, Common Meadow Sweet. 
COMPOSITE. 
Bidens chrysanthemoides, Large Bur-Marigold (Portsmouth). 
Cichorium intybus, Chicory. 
Centaurea cyanus, Bluebottle. 
LOBELIACEHE. 
Lobelia inflata, Indian Tobacco (Portsmouth). 
LABIATyE. 
Hedeoma pulegioides, Pennyroyal (Portsmouth). 
POLYGONACEJE. 
Polygonum hydropiperoides, Mild Water-Pepper. * 
Polygonum orientale, Prince’s Feather. 
Polygonum persicaria, Lady’s Thumb. 
Polygonum articulatum, Jointweed (Portsmouth). 
Polygonum aviculare, Knotgrass. 
EUPHORBIACEyE. 
Euphorbia maculata, Spotted Spurge. 
Euphorbia hypericifolia, Larger Spotted Spurge. 
ORCHIDACEvE. 
Spiranthes graminea, Ladies’ Tresses. 
Spiranthes cernua, Ladies' Tresses. 
*For these additions to the Flora of the Island, the Society is indebted to Mrs. J. M. 
Smith. 
